6466420 has 24 divisors (see below), whose sum is σ = 14049000. Its totient is φ = 2497152.

The previous prime is 6466417. The next prime is 6466429. The reversal of 6466420 is 246646.

It can be written as a sum of positive squares in 4 ways, for example, as 345744 + 6120676 = 588^2 + 2474^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6466429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4995 + ... + 6154.

It is an arithmetic number, because the mean of its divisors is an integer number (585375).

Almost surely, 2^6466420 is an apocalyptic number.

It is an amenable number.

6466420 is an abundant number, since it is smaller than the sum of its proper divisors (7582580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6466420 is a wasteful number, since it uses less digits than its factorization.

6466420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11187 (or 11185 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 6466420 is about 2542.9156494072. The cubic root of 6466420 is about 186.3036240351.

It can be divided in two parts, 6466 and 420, that added together give a palindrome (6886).

The spelling of 6466420 in words is "six million, four hundred sixty-six thousand, four hundred twenty".